滇西旱地春植甘蔗丰产综合栽培技术研究

Integrates High-yielding Cultivation Practices of Spring -sown Sugarcance in Western Yunnan Dryland

根据系统工程原理，在综合应用适宜云南蔗区的深沟板土、闭垄镇压、提早植期、化学除草、 快锄低砍等规范配套技术下，对甘蔗下种量、行距、氮、磷、钾施用量５个重要因素采用二次通用旋 转组合设计试验研究，建立旱地甘蔗丰产综合栽培产量函数模型，筛选适宜模式。试验表明：５个因 素对产量指标的作用顺序是氮＞下种量＞磷＞钾＞行距，下种量和种植行距，氮和钾交工作用达 到了极显著水平。运用试验产量回归数学模型，结合滇西蔗区自然耕作条件，社会经济状况，模拟 运算，形成了丰产优化综合技术方案。图３，表４，参８。

According to the principle of system engineering, and with appropriate application of suitable planting methods such as deeper ploughing, early sowing, chemical weed control and lower cutting, the combination of seeding rate, row-spacing, N.P and K fertilizer was studied by common rotatory design, and an integrated high-yielding model for sugarcant was establiished. the results show that order of factors contributing to yield is N>seeding r ate > P > K > row - spac lug, and the interaction between seeding rate and row-spacing or N and K is significant.